Can we imagine one day that a thief, a rapist or any other criminal is arrested before he even commits his crime? This science fiction scenario is already a reality in the cantons of Zurich and Aargau, but also in Milan or in the United States. Predicting the location and date of the next crime is called predictive policing. This new method is already used daily to stop a series of crimes. A simple computer, a machine that calculates a probability for a given area and time, allows the police to anticipate theft even before it is committed.

Source: RTS.ch (French)